Semi-octopost extrusion



FIG. 1 is a exploded view of a semi-octopost extrusion showing all of the elements used to form a post;

FIG. 2 is a front elevational view thereof when assembled; and,

FIG. 3 is a top, front and right side perspective view thereof in an assembled state. 

The ornamental design for semi-octopost extrusion, as shown and described. 